John Herschel discovered NGC 3316 = h3284 on 26 Mar 1835 and noted "vF; R." In a later note he mentions "This numerous and very interesting group has been made out by a careful collation of diagrams made in sweep 564 and 689, for the purpose of identification, from which if appears that though in each diagram only 7 were seen and laid down, yet there are in reality at least 9 in the whole group." Harold Corwin notes there are only 7 galaxies he likely picked up, and the remaining two are unknown or may not exist.

300/350mm - 13.1" (2/18/04 - Costa Rica): fairly faint, fairly small, round, 40" diameter, weak even concentration, no well-defined core. A mag 11.5 star lies 3' SSE and two mag 13.5 stars are 1.2' S and 1.7' SE of center. Situated in the core of AGC 1060 and forms the eastern vertex of an equilateral triangle with much brighter NGC 3314 7.5' SW and NGC 3312 8' WNW.

400/500mm - 18" (4/9/05): faint, small, round, 30" diameter, increases to a small, brighter core. On a line with NGC 3312 8' WNW and a mag 11 star 4.8' WNW.

600/800mm - 24" (3/28/17): moderately bright, fairly small, round, 40" diameter, high surface brightness with a thin low surface brightness halo, contains a very small bright nucleus that increases to a stellar pip. Fifth and smallest of 5 brighter galaxies nearly on a line in the core of AGC 1060.

Notes by Steve Gottlieb